Revelation 3:15"...you are
neither cold nor hot. I wish you were either one or the other!"

Jesus
says he is 'stressed out' over the lukewarm Laodiceans. Everyone likes 'cold
beer' or 'hot coffee', but who likes either one of them lukewarm? When anyone
gets a mouthful of 'lukewarm' beer or coffee the first thing they want to do
is spit it out of their mouth.